Influence of process parameters on dimensional accuracy of machined Titanium (Ti-6Al-4V) alloy in Laser Beam Machining Process
Influence of process parameters on dimensional accuracy of machined Titanium (Ti-6Al-4V) alloy in Laser Beam Machining Process
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DOI：
10.1016/j.optlastec.2020.106494
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发表时间：
2020-12-01
影响因子：
5
通讯作者：
Alkhalefah, Hisham
中科院分区：
文献类型：
--
作者：
Muthuramalingam, T.;Moiduddin, Khaja;Alkhalefah, Hisham
在钛合金等新型材料的加工中，工艺强化在现代加工技术中起着至关重要的作用。本文采用田口实验方法，研究了激光加工过程中工艺参数对钛（Ti-6Al-4V）合金打孔的影响。选取喷嘴距离、功率、焦距和气体压力作为输入工艺参数，对激光束加工过程中圆度和椭圆度等尺寸精度质量指标进行评定。结果表明，功率对尺寸精度的影响最为显著。选择1.2 mm （ND）、2mm (L)、4 bar （GP）和2 kW (J)作为最佳工艺参数组合，在所选工艺参数中获得了较好的尺寸精度。研究还发现，较低的峰值功率对可加工性有较大影响。
The process enhancement plays a vital role in the modern machining techniques during machining of newer materials such as titanium alloys. In the present work, a research endeavor was made to examine the effects of process parameters in laser beam machining process while drilling holes over Titanium (Ti-6Al-4V) alloy under Taguchi approach of experiments. Nozzle distance, power, focal length and gas pressure were chosen as the input process parameters to assess the dimensional accuracy quality measures such as roundness and ovally in laser beam machining process. It was found that power has the most significant impact on determining the dimensional accuracy. 1.2 mm (ND), 2 mm (L), 4 bar (GP) and 2 kW (J) has been chosen as optimal process parameters combination for obtaining better dimensional accuracy among the selected process parameters. It was also observed that the machinability could be highly influenced with lower peak power.